hw/pcie_host.h

   1 /*
   2  * pcie_host.h
   3  *
   4  * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
   5  *                    VA Linux Systems Japan K.K.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #ifndef PCIE_HOST_H
  23 #define PCIE_HOST_H
  24
  25 #include "pci_host.h"
  26
  27 struct PCIExpressHost {
  28     PCIHostState pci;
  29
  30     /* express part */
  31
  32     /* base address where MMCONFIG area is mapped. */
  33     target_phys_addr_t  base_addr;
  34
  35     /* the size of MMCONFIG area. It's host bridge dependent */
  36     target_phys_addr_t  size;
  37
  38     /* result of cpu_register_io_memory() to map MMCONFIG area */
  39     int mmio_index;
  40 };
  41
  42 int pcie_host_init(PCIExpressHost *e);
  43 void pcie_host_mmcfg_unmap(PCIExpressHost *e);
  44 void pcie_host_mmcfg_map(PCIExpressHost *e,
  45                          target_phys_addr_t addr, uint32_t size);
  46 void pcie_host_mmcfg_update(PCIExpressHost *e,
  47                             int enable,
  48                             target_phys_addr_t addr, uint32_t size);
  49
  50 #endif /* PCIE_HOST_H */